i5-12400F vs Ryzen 9 5900X
Full specification comparison between the Intel Core i5-12400F (2022) and the AMD Ryzen 9 5900X (2020).
i5-12400F
Intel Mid-range
- ✓ Lower power draw (65 W vs 105 W)
- ✓ Cheaper at launch ($167 vs $549)
- ✓ Newer (2022 vs 2020)
- ✓ Better performance per dollar
Ryzen 9 5900X
AMD Mid-range
- ✓ More cores (12 vs 6)
- ✓ Larger L3 cache (64 MB vs 18 MB)
- ✓ Higher boost clock (4.8 vs 4.4 GHz)
Verdict: The i5-12400F and Ryzen 9 5900X deliver essentially the same level of performance — the difference is within a few percent and won't be noticeable in real use. The decision comes down to price, power draw and features.
For gaming the i5-12400F leads, but the Ryzen 9 5900X pulls ahead in heavily multi-threaded work like rendering, compiling and video export thanks to its stronger multi-core throughput.
Note they use different platforms (LGA1700 vs AM4), so this is a motherboard decision too, not just a CPU swap.
At launch pricing, the i5-12400F offers more performance per dollar, and the i5-12400F is the more power-efficient chip.
Estimated performance
Estimated average 1080p gaming performance compiled from publicly available benchmark data. Individual games vary.
Specs side by side
| Specification | i5-12400F | Ryzen 9 5900X |
|---|---|---|
| Family | Alder Lake | Zen 3 |
| Socket | LGA1700 | AM4 |
| Release year | 2022 | 2020 |
| Est. gaming perf. | ||
| Est. multi-core perf. | ||
| Est. single-core perf. | ||
| Cores | ||
| Threads | ||
| Max boost clock | ||
| L3 cache | ||
| TDP (base) | ||
| Integrated graphics | None | None |
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the i5-12400F better than the Ryzen 9 5900X?
They perform almost identically (within ~1%). Choose based on price, power consumption and platform rather than raw speed.
How much faster is the i5-12400F than the Ryzen 9 5900X?
Roughly 0% on average in gaming workloads. The gap varies by title, resolution and settings.
Which processor is better value?
Comparing launch prices, the i5-12400F delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.